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- A Comparative Quantitative Study of the Common Elements Found in the Post Oak and Willow
- This thesis explores the chemical contents of post oak and willow trees. Samples of each tree are compared to determine the amount of sulfur, phosphorus, potassium, sodium, silicon, iron, aluminum, calcium, magnesium, and manganese in them. Results indicated usefulness of each tree to humans.
- Geology of the Lost Creek Schroeckingerite Deposits Sweetwater County, Wyoming
- A report which presents the geologic results of an exploration program in the Lost Creek area by the U.S. Geological Survey in 1951-52 on behalf of the Division of Raw Materials of the U.S. Atomic Energy Commission.
- Comparison of Sodium and Potassium Carbonates as Lithium Zirconate Modifiers for High-Temperature Carbon Dioxide Capture From Biomass-Derived Synthesis Gas
- The process of gasifi cation converts biomass into synthesis gas (syngas), which can be used to produce biofuels. Solid-phase sorbents were investigated for the removal of CO2 from a N2/CO2 gas stream using a CO2 concentration similar to that found in a biomass gasifi cation process. During the gasifying process, large amounts of carbon dioxide (CO2) are created along with the syngas. The produced CO2 must be removed before the syngas can be used for fuel synthesis and to avoid the possible formation of unwanted byproducts. A thermogravimetric analyzer was used to test the CO2 absorption rates of sorbents composed of lithium zirconate (Li2ZrO3), as well as mixtures of Li2ZrO3 with potassium carbonate (K2CO3) and sodium carbonate (Na2CO3). The experimental results show that Li2ZrO3 has a low absorption rate, but sorbents containing combinations of Li2ZrO3 and the K2CO3 and Na2CO3 additives have high uptake rates. Using different proportions of K2CO3 and Na2CO3 produces varying uptake rates, so an optimization experiment was performed to obtain an improved sorbent. The CO2 absorption and regeneration stability of the solid-phase sorbents were also examined. A sorbent composed of Li2ZrO3 and 12.1 weight % Na2CO3 was shown to be stable, based on the consistent CO2 uptake rates. Sorbents prepared with Li2ZrO3, 17.6 weight % K2CO3 and 18.1 weight % Na2CO3 showed instability during regeneration cycles in air at 800 °C. Sorbent stability improved during regeneration cycles at 700 °C. Further testing of the Li2ZrO3 sorbent under actual syngas conditions, including higher pressure and composition, should be done. Once the optimum sorbent has been found, a suitable support will be needed to use the sorbent in an actual reactor.
- The Passage of Sodium-24 and Rubidium-86 Across the Blood-Brain Barrier System of Canines at Low Body Temperatures
- To evaluate the blood-brain barrier system in the pathogenesis of an irreversible hypothermic state in dogs, concentrations of 2 4 Na and 86Rb were measured at body temperatures ranging from 37 0 C to 160 C. A suppression of transport of sodium was demonstrated, followed by an increase as the temperature was lowered. The concentration of rubidium ion increased in concentration as the temperature fell. These data indicate there may be a temperature threshold below which the blood-brain barrier system fails to maintain the internal environment of the central nervous system. The intimate relationship of several brain stem nuclei with the cerebro-spinal fluid indicates they may be at risk during profound cooling.
- [News Clip: Salt labels]
- Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
- Kinetic and Thermochemical Studies of the Recombination Reaction Na + O₂ + N₂ from 590 to 1515 K by a Modified High-Temperature Photochemistry Technique
- Article on kinetic and thermochemical studies of the recombination reaction sodium + oxygen + nitrogen from 590 to 1515 K by a modified high-temperature photochemistry technique.
- An ab initio study of the ionization of sodium superoxide
- Article on an ab initio study of the ionization of sodium superoxide.
- Sodium chloride accumulation in glycophyte plants with cyanobacterial symbionts
- This article reports an apparently novel and taxonomically diverse grouping of plants that continuously maintain high tissue sodium contents and share the rare feature of possessing symbiotic cyanobacteria.
- Multiple coexisting intercalation structures of sodium in epitaxial graphene-SiC interfaces
- This article discusses multiple coexisting intercalation structures of sodium in peitaxial graphene-SiC interfaces.
- Self-Diffusion of Na-²² in Molten PbCl₂-NaCl Mixtures
- This thesis contains the exploration and investigation of self-diffusion of Na-22 in Molten PbCl2-NaCl mixtures.
- Variational Wave Function for Sodium
- The practical method of applying the variation principle to the calculation of the energy of an atom demands a trial function which contains variable parameters. The previous work done using this approach was based on the use of some combination of hydrogenic wave functions containing parameters inserted in appropriate places. The present calculation of the energy of the eleven-electron atom has been brought about using this method.
- Chronic Excess Salt Consumption as an Etiologic Factor in Human Hypertension
- Since 1940 it has been known that extra salt (i.e. sodium chloride) facilitated the development of experimental hypertension induced by various sterols; subsequently hypertension was induced by desoxycorticosterone acetate plus sodium chloride; then hypertension was produced by using hypertonic saline as the sole source of liquid; and finally, in 1953, Menesly and his associates reported that chronic ingestion of excess dietary salt alone would produce hypertension in rats. Furthermore, in conformity with general pharmacologic experience relating dose response to successive increments of a drug, as the average daily salt intake increased, the average systolic, blood pressure increased.
- The Corrosion of Refractory Materials in Sodium
- Analytical methods for the presence of the refractory substances in sodium are described.
- A Proposed Mechanism and Method of Correlation for Convective Boiling Heat Transfer with Liquid Metals
- An additive, interacting mechanism of micro and macro-convective heat transfer is proposed to represent boiling heat transfer with net vapor generation to saturated liquid metals in convective flow. Based on this mechanism, a method for calculating boiling coefficients is developed. The correlating is shown to be in fair agreement with early experimental results for convective boiling of potassium and sodium.
- Pulsed cooperative backward emissions from non-degenerate atomic transitions in sodium
- Article describes study which examines backward cooperative emissions from a dense sodium atomic vapor.
- Conceptual Design of a 300-Mwe Paste-Fueled Fast Breeder Power Reactor
- "This report describes the conceptual design of 300 Mwe fast breeder reactor power plant that utilizes a paste-fuel system consisting of small, spherical particles settled in sodium" (p. 7). It includes a discussion of the paste-fuel system, the design of the core and blanket structure with analysis, a description of the fuel-handling system, processes for fabricating and processing the fuel, and schematics.
- Rediscovery of the Elements: Sir Humphry Davy and the Alkalis
- Article provides information on the history of alkalis, particularly discoveries associated with potassium and sodium. The article also gives information on Humphry Davy, the first person to prepare alkalis in elemental form.